Key Borg, designated O-69, is created when the Shut close Techavirus infects a motorcycle key. The multi-dimple key on his right arm can lock anything, door or object. Key Borg is created in order to trap humans in the Ariadne Building as part of Melissa's scheme to cause human suffering. Once the plan is derailed, Key Borg is destroyed by Gorilla Spy Ranger, Scarab Spy Ranger, and Beetle Spy Ranger. Key Borg is later recreated by Gerrok.